Beyan tyson



B. TYSON.

AMALGAMATOR.

(No Model.)

No. 372,722. Patented Nov. 8, 1887.

WITNESSES yaw.

N. PEYERS, vmwmm m m Walhington o. c.

ihvrrs STATES ATENT rrics.

BRYAN TYSON, OF YVASHINGTON, DISTRICT OF COLUMBIA.

AMALGAMATOR.

SPECIFICATIQN forming part of Letters Patent No. 372,722, dated November8, 1887.

Application filed October (5, 1883.

T0 0. whom it may concern..-

Be it known that I, BRYAN Tyson, a citizen of the United States,residing at \Vashington, in the District of Columbia, have invented cer*tain new and useful Improvements in Amalgamators, of which the followingis a specification, reference therein being had to the accompanyingdrawings.

In the accompanying drawings, Figure 1 is a top view of my machine. Fig.2 is a longitudinal sectional view of same on linexaz. Fig. 3 is a sideview of one of the agitators. Fig. 4. is an enlarged sectional view ofsame.

The object to be attained by this machine is to afford necessaryfacilities for keeping the sands that overliequicksilver inproperly-constructed reccptaclesloose, th usaffording proper facilitiesfor bringing the precious metalssuch as gold and silver-into contactwith the quicksilver with which said receptacles have been partiallyfilled. If said precious metals will amalgamate, they will unite withand settle into the quicksilver; if not, they will rest at case on thetop of same.

In the construction of my improved amalgamator a sluice-box, A, ofproper dimensions, placed on a suitable incline, is employed. Saidsluice-box is preferably provided with niches B and B.

C and C are receptacles for holding and working quicksilver, constructedsubstantially as shown in my patent dated May 18, 1886, No. 342,272, forwhich no claim is made in this application. Said receptacles should beplaced at right angles across the sli1icc-boX,extcn(ling into theniches. They should fit sulliciently loose in the niches to admit oftheir being read ily lifted in and out.

A substantial frame of proper dimensions, composed of four uprightposts, D l), securely bound together, is constructed. This frame servesas a support for the two pieces E E. From said pieces agitators F F aresuspended by means of the rods G H, held in position and adjustable byscrews and nuts I. The agitators are preferablybrought to a sharp pointat each end. Said rods are properly secured to the agitators by means ofbolts J K, thus forming flexible joints that permit the agitators to beworked back and forth. The agitators are of suitable length to workinside of the receptacles O and O.

Said receptacles may be of Serial No. 108,387. (No model.)

proper width for one agitator only to work in, as O, or they may besufficiently wide for any convenient number of agitators to work insaythree, as 0'. Any convenient number of receptacles O and C may beemployed, or one kind alone may be used to the exclusion of all others,as may be found best in practice. \Vhen constructed for one agitatoronly, the pattern (grooved riffle) as shown in PatentNo.270,l56, datedJanuary 2, 1883, is preferred. The three agitators that work in thereceptacle 0 may be bound together, so as to be of proper dis tancesapart, by means of blocks L L. placed between the stems that extend fromthe agitators, and a bolt passed through said blocks and stems. Theseagitators are preferably con structed of some hard metal, and may beprovided with a flange, M, on either side. Said flanges may be broughtto a sharp edge, the bevel to effect this being preferably on the topside. Below said flanges thin lugs N, preferably brought to a sharpedge, may be' constructed. The bevel to effect this may be the same onthe top and bottom sides.

The lugs N may be dispensed with, and in lieu thereof any convenientnumber of flanges M may be employed, as may be found best in practice.

0 is an axle working in proper bearings,provided with a crank, P,preferabl y at cit-her end, though one crank alone can be made toanswer. Said axle is also provided with a wheel, Q, which may bepropelled by means of a belt or anyother convenient power; but any otherdevice that will produce a gentle sliding motion 'of the agitators maybe employed in lieu of cranks, as may be found best in practice.

It R are connecting-rods that connect said cranks with the piece S,which should be properly secured to the agitators F F. \Vhen the wheelQ; is turned, said agitators will be worked to and fro, thus keeping thesands overlying the quicksilver in said receptacles O O loose. By thismeans excellent facilities are afforded for bringing the precious metalsinto contact with the quicksilver. The bars T T,placed in the receptacle0 and properly secured thereto at each end,will cause the sandsoverlying the quicksilver in said receptacle to be agitated much moreeffectually than could be done without them.

The agitators F F should not be run sufficiently fast to throw out thequicksilver in the receptacles O and O. A slow gentle motion willagitate the sands sufficiently well for all practical purposes. Saidagitators should extend to a sufficient depth below the surface of thequicksilver to prevent any sands coming between the bottoms thereof andthe quicksilver, thus preventing flouring of same. The quicksilver willnot only serve for amalgamating purposes, but will also render importantservices in giving the sands situated thereon a peculiar agitation, thusfacilitating the prewill take rusty gold as readily as it will gold thatwill amalgamate.

Having described myinventiou,what I claim as new, and desire to secureby Letters Patent,

1. The agitators F F, suspended from pieces E E by means of rods G H,operated by the cranks P P and connecting-rods R E, all constructed tomove the agitators transversely to a sluice-box, in combination with asluice-box provided with niches B and B, and receptacles O and O, forholding and working quicksilver, with which they are filled to -a properdepth, substantially as and for the purposes described.

2. The agitators F F, suspended from pieces E E by means of rods G H,operated by the cranks P P and connecting-rods R R, in combination withasluice-box provided with niches B and B, and receptaclesO and G, forholding and working quicksilver, with which they are filled to a properdepth, said receptacles being provided with bars T T, substantially asan for the purposes described.

In testimony whereof I have affixed my signature in presence oftwowitnesses.

BRYAN TYSON. Witnesses: W. J. NEwToN,

J. G. KROHR.

